Yunus Balcioglu

def dropNodeOnWire(newNode, nodeConnections, pos, editor, nearbyOnly=True):
    newNodeType = newNode.type()
    ninputs = newNodeType.maxNumInputs()
    noutputs = newNodeType.maxNumOutputs()

    if ((len(nodeConnections) == ninputs and len(nodeConnections) == noutputs) or not nearbyOnly):
        sortedwires = sorted(nodeConnections, key=lambda c: c.outputItem().position().x())
        sortedwires = sorted(sortedwires, key=lambda c: c.outputIndex())
    else:
        sortedwires = sorted(nodeConnections, key=lambda c: pointLineProjection(pos, c.inputItem().position(), c.outputItem().position()).distanceTo(pos))

    uniquewires = []
    uniquenames = []

    if nearbyOnly:
        nearestwires = []
        for c in sortedwires:
            dist = pointLineProjection(pos, c.inputItem().position(), c.outputItem().position()).distanceTo(pos)
            # hard coded distance to wire connections
            if dist <= 0.42:
                nearestwires.append(c)

        sortedwires = nearestwires

    for w in sortedwires:
        uniquename = w.inputItem().name() + ":" + str(w.inputIndex())
        if uniquename not in uniquenames:
            uniquenames.append(uniquename)
            uniquewires.append(w)

    nwires = len(uniquewires)
    
    for i in range(min(ninputs, nwires)):
        c = uniquewires[i]
        newNode.setInput(i, c.inputItem(), c.outputIndex())


    for i in range(min(noutputs, nwires)):
        outputIndex = i
        if i >= noutputs - 1:
            outputIndex = noutputs - 1

        c = sortedwires[i]
        c.outputItem().setInput(c.inputIndex(), newNode, outputIndex)



def createNewNode(uievent, nodetypename, parms=None, name=None, pressbuttons=None, mousepos=None):
    import nodegraphutils as utils
    
    pwd = uievent.editor.pwd()
    path = pwd.path()
    context = pwd.childTypeCategory().name()
    if pwd and path and context:
        #nodetype = hou.nodeType(pwd.childTypeCategory(), nodetypename)
        #if nodetype:
        if True:
            selectedNodes = list(hou.selectedNodes())
            selectedConnections = hou.selectedConnections()
            selectedSubnetInputs = [item for item in hou.selectedItems() if type(item) == hou.OpSubnetIndirectInput]
            selectedNetworkDots= [item for item in hou.selectedItems() if type(item) == hou.OpNetworkDot]
            selectedNodes.extend(selectedSubnetInputs)
            selectedNodes.extend(selectedNetworkDots)

            selectedNodes = sorted(selectedNodes, key=lambda n: n.position().x())
                
            #with hou.undos.group("Create New Node: " + nodetype.description()):
            with hou.undos.group("Create New Node: " + nodetypename):
                pos = uievent.editor.cursorPosition()
                if mousepos:
                    pos = mousepos
                    
                newNode = pwd.createNode(nodetypename)

                radius = utils.getConnectorSnapRadius(uievent.editor)
                targets = utils.getPossibleDropTargets(uievent, radius)
                nodewires = [target.item for target in targets if target.name == "wire"]

                size = utils.getNewNodeHalfSize()
                #print ("size", size)
                pos[0] -= size.x()
                pos[1] -= size.y()

                setdisplayflag = False
                connectInputs = False

                if selectedConnections and len(hou.selectedNodes()) == 0:
                    dropNodeOnWire(newNode, selectedConnections, pos, uievent.editor, nearbyOnly=False)
                elif nodewires and len(selectedNodes) <= 1:
                    dropNodeOnWire(newNode, nodewires, pos, uievent.editor)
                elif selectedNodes and context != "Apex":
                    connectInputs = True
                    setdisplayflag = True

                if pressbuttons:
                    for button in pressbuttons:
                        newNode.parm(button).pressButton()
                        
                if name:
                    newNode.setName(name, unique_name=True)
                newNode.setPosition(pos)
                newNode.setSelected(True, clear_all_selected=True)

                nodecount = len(selectedNodes)
                if setdisplayflag and nodecount != 0:
                    toggleNodeDisplayFlag(newNode, context)
                    toggleNodeRenderFlag(newNode, context)


                if parms:
                    if isinstance(parms, dict):
                        for i, (key, value) in enumerate(parms.items()):
                            newNode.parm(key).set(value)

                    elif isinstance(parms, str):

                        if parms.startswith("de:"):
                            # Split parms into opcode and opfunc
                            opcode, opfunc = parms.split(":", 1)
                            hou.data.applyDecorationRecipe(opfunc, newNode)
                        else:
                            # Search inside legacy presets that has the same name
                            presets = hou.hscript("oppresetls " + newNode.path())
                            presets = [item.strip() for item in presets[0].splitlines() if item.strip()]

                            isrecipe = parms in presets
                            if isrecipe:
                                hou.hscript("oppresetload " + newNode.path() + " '{0}'".format(parms))
                            else:
                                hou.data.applyNodePresetRecipe(parms.strip("'"), newNode)


                if connectInputs:
                    connectNodesToNewNode(newNode, selectedNodes)


                return newNode